definition of autofocus
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Autofocus Autofocus is a mechanism in an optical system which automatic ally changes the optics to focus an image. In a camera, this is used to focus the subject image, through the lens, onto the focal plane-the film or digital sensor. Autofocus MethodsEdit ... Autofocus Evolution.
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- ‘The microscope also has an autofocus mechanism.’ ‘When shooting, the camera is satisfyingly responsive, with quick autofocus and minimal shutter delay.’ ‘The central microprocessor receives information from the autofocus system and the light meter.’ ‘There's no autofocus, no auto-exposure, no auto-film-winding, no auto-nothing.’
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zoom lens 1. (Photography) a lens system that allows the focal length of a camera lens to be varied continuously without altering the sharpness of the image. See also telephoto lens.
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Using exposure compensation In Manual mode, adjust the aperture and shutter speed based on the value displayed on the viewfinder or LCD display. Set the scale to + or-to adjust the exposure. The embedded exposure compensation device is mainly used in Auto or Semi-Auto mode. When the value is set using the device, the exposure meter of your camera automatically determines the 'reasonable' exposure value for the latest reading.
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photography Definition of photography. : the art or process of producing images by the action of radiant energy and especially light on a sensitive surface (as film or an optical sensor)
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- InFocus is a unique optical device—in fact, a system—that allows you to realize the full potentials of. optical microscopy. InFocus can be thought of as the ultimate. InfiniTube when infinity-corrected. objectives are used with it.
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autofocus au•to•fo•cus. 1. having the ability to focus automatically: an autofocus camera. 2. the ability of a camera or lens to focus automatically.
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How to Use Your DSLR's Autofocus Modes AI Focus / AF-A. This mode combines both the above-mentioned autofocus modes. In AI Focus (Canon) or AF-A (Nikon), the camera remains in Single Shot mode unless the subject moves, in which case it automatically switches to Continuous mode.The camera will emit a soft beep once the subject is focused.I Focus / AF-A. This mode combines both the above-mentioned autofocus modes. In AI Focus (Canon) or AF-A (Nikon), the camera remains in Single Shot mode unless the subject moves, in which case it automatically switches to Continuous mode.
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- 2. a: camera obscura b: a device that consists of a lightproof chamber with an aperture fitted with a lens and a shutter through which the image of an object is projected onto a surface for recording (as on film) or for translation into electrical impulses (as for television broadcast). — off camera. 1.
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What does non focal mean? Parfocal lens A parfocal lens is a lens that stays in focus when magnification/focal length is changed. There is inevitably some amount of focus error, but small enough to be considered insignificant. Contents
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Definition of âapertureâ - English Dictionary aperture definition, meaning, what is aperture: a small and often narrow opening, especially one that allows light into a camera. Learn more.
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0 100%FREQUENCYLittle used37 /100 A parfocal lens is a lens that stays in focus when magnification/focal length is changed. There is inevitably some amount of focus error, but small enough to be considered insignificant. Definition of parfocal in the English dictionary. The definition of parfocal in the dictionary is maintaining focus even if magnification is changed.
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auto- auto- A prefix meaning oneself, as in autoimmune, producing antibodies or immunity against oneself. It also means by itself, automatic, as in autonomic, governing by itself.
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- QuickGuide to Accurate EOS Autofocus 1 2 3This guide will provide tips on how to ensure that you and your EOS cameras and lenses can focus accurately and consistently. This is most important for lenses that have a very narrow plane of acceptable sharpness (depth-of-field).
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Meaning of âteleprompterâ in the English Dictionary teleprompter noun [C] uk / ˈtel.ɪˌprɒmp.tə r / us / ˈtel.əˌprɑːmp.tɚ / US UK trademark Autocue › an electronic device that makes it possible for people speaking on a television programme to read text while looking directly at the television camera
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Accelerometer - definition The accelerometer is a built-in electronic component that measures tilt and motion. It is also capable of detecting rotation and motion gestures such as swinging or shaking. The most common use for it is to activate auto screen rotation on mobile devices when the user changes their orientation from portrait to landscape or vice-versa.
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What is Instant Eyedropper What is Instant Eyedropper. Instant Eyedropper is a free color detection tool for webmasters that will identify and automatically paste to the clipboard the HTML color code of any pixel on the screen with just a single mouse click.ow it works. 1  Move the mouse pointer to the Instant Eyedropper icon in the system tray. 2  Press and hold the left mouse button and move the mouse pointer to the pixel whose color you want to identify.
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- 2. a: camera obscura b: a device that consists of a lightproof chamber with an aperture fitted with a lens and a shutter through which the image of an object is projected onto a surface for recording (as on film) or for translation into electrical impulses (as for television broadcast). — off camera.
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Autofocus An autofocus (or AF) optical system uses a sensor, a control system and a motor to focus fully automatic or on a manual ly selected point or area. An electronic rangefinder has a display instead of the motor; the adjustment of the optical system has to be done manual ly until indication. Tag: ~.
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Electronic viewfinder Electronic viewfinders are used in digital still cameras and in video cameras. Some cameras (such as Panasonic, Sony, Fujifilm) have an automatic eye sensor which switches the display from screen to EVF when the viewfinder is near the eye. More modest cameras use a button to switch the display.
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Auto-Tune For correcting pitch in general, see Pitch correction. For automated optimization software, see Self-tuning. Auto-Tune is an audio processor created by Antares Audio Technologies which uses a proprietary device to measure and alter pitch in vocal and instrumental music recording and performances.
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Definition of âconfoundâ - English Dictionary The epiretinal implant system must be capable of processing images in real time to prevent any noticeable delays between the camera input and retinal stimulation, which could confound visual perception.
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Shutter Shutter, in photography, device through which the lens aperture of a camera is opened to admit light and thus expose the film (or the electronic image sensor of a digital camera). Adjustable shutters control exposure time, or the length of time during which light is admitted.
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Autoload In computer programming, autoloading is the capability of loading and linking portions of a program from mass storage automatically when needed, so that the programmer is not required to define or include those portions of the program explicitly.
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Digital Camera Modes Automatic Modes. Automatic Mode. I suspect no one will need any introduction to this mode (as it seems most digital camera owners use it). Auto mode tells your camera to use it’s best judgement to select shutter speed, aperture, ISO, white balance, focus and flash to take the best shot that it can.
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What is the meaning of focal firm? definition - parfocal lens. Parfocal lens. A parfocal lens is a lens that stays in focus when magnification/focal length is changed. There is inevitably some amount of focus error, but small enough to be considered insignificant.